Create and Update Views for entity Programatically.

Hello Experts,

I would like to create new views and update the existing views. I have a xml file which contain the fetchxml and layout xml for entity. I have to get the fetch and layout from the  xml file and execute the create and update method. For this I am trying to retrieve the existing view by passing view name and if exist update the view and if not exist, create view. Till getting the fetch and layout, is fine. but retrieving and creating view no luck.

Please Suggest.

Saroj